1000+ Advanced Surveying Multiple Choice Question Answer [Solved]

1. The Polaris remains below horizon at
A. 10° N
B. 50° N Latitude
C. Equator
D. 5° S latitude
Answer : D

2. Pick up the correct statement from the following:
A. The angle between the plane of the negative and the horizontal plane containing perspective axis is the tilt of the photograph
B. The direction of maximum tilt is defined by the photo principal line
C. The principal plane is truly vertical plane which contains perspective centre as well as principal point and plumb point
D. All the above
Answer : D

3. The altitudes of a circumpolar star at culminations are 70° and 10°, both culminations being north of zenith. The declination of the star, is
A. 80°
B. 70°
C. 60°
D. 50°
Answer : C

4. For adjusting a quadrilateral whose both the diagonals are observed, the equations of conditions involved, are
A. Two angle equations and two side equations
B. One angle equation and three side equations
C. Three angle equations and one side equation
D. None of these
Answer : C

5. On vertical photographs, height displacement is
A. Positive for points above datum
B. Negative for points below datum
C. Zero for points vertically below the air station
D. All the above
Answer : D

6. For plane ground the scale of a vertical photograph will be same as that of a tiled photograph along the photo parallel through
A. Isocenter
B. Plumb point
C. Principal point
D. None of these
Answer : A

7. Assuming human normal vision distance 25 cm, smallest measurable angle 20, and intraocular distance 6.5 cm, the smallest depth to be discerned is
A. 0.1 mm
B. 0.5 mm
C. 1.00 mm
D. 1.1 mm
Answer : A

8. The product of the distances of plumb point and horizon point of a vertical photograph from its principal point, is
A. f²
B. 2f²
C. 3f²
D. ½f
Answer : A

9. The difference of parallax for a given difference in elevation is independent of
A. Focal length of the camera
B. Overall size of the photo graphs
C. Percentage of overlap
D. All the above
Answer : D

10. Homologous point is
A. Photo principal point
B. Ground principal point
C. Ground isocenter
D. All the above
Answer : D

11. The angular distance of a heavenly body from the equator, measured along its meridian, is called
A. Declination
B. Altitude
C. Zenith distance
D. Co-latitude
Answer : A

12. The latitude of a place was obtained by subtracting the declination of a star from its zenith distance, the observed star was between
A. Horizon and equator
B. Zenith and pole
C. Equator and zenith
D. Pole and horizon
Answer : A

13. The position of a heavenly body on the celestial sphere can be completely specified by
A. Its altitude and azimuth
B. Its declination and hour angle
C. Its declination and right ascension
D. All the above
Answer : D

14. The relation between the air base (B), photographic base (b), flying height (H) and the focal length (f) of a vertical photograph, is
A. B = bH/f
B. B =f/bH
C. B = b/fH
D. B = H/bf
Answer : A

15. A star may culminate at zenith if its declination is
A. Greater than the longitude of the place
B. Less than the latitude of the place
C. Equal to the latitude of the place
D. None of these
Answer : C

16. A nautical mile is
A. One minute arc of the great circle passing through two points
B. One minute arc of the longitude
C. 1855.109 m
D. All the above
Answer : D

17. The flying height of the camera is 1, 000 m above mean ground level, the distance of the top of a building from a nadir point is 10 cm and the relief displacement of building is 7.2 mm. The height of the building, is
A. 52 m
B. 62 m
C. 72 m
D. 82 m
Answer : C

18. Pick up the correct statement from the following:
A. Sidereal time at any instant is equal to the hour angle of the first point of Aries
B. Local sidereal time of any place is equal to the right ascension of its meridian
C. Sidereal time is equal to the right ascension of a star at its upper transit
D. All the above
Answer : D

19. The distance between the projection centre and the photograph, is called
A. Principal distance
B. Principal line
C. Isocentric distance
D. Focal length
Answer : A

20. If ? is the declination of the star and ? is the latitude of the observer, then the azimuth of the star at elongation is given by
A. sin z = sec ? . cos ?
B. cos z = sec ? . cos ?
C. tan z = sec ? . cos ?
D. None of these
Answer : A

21 The difference of height of two points whose parallax difference is 0.8 mm on a pair of stereo pair taken from a height H is 100 m. If mean photo base is 95.2 mm, the flying height is
A. 8,000 m
B. 10,000 m
C. 12,000 m
D. 14,000 m
Answer : C

22. If the distance between the projectors is altered by a movement along X-axis of one projector,
A. The length of the air base is increased
B. The scale of the model is altered
C. y-parallax is not affected
D. All the above
Answer : D

23. The point on the photograph where bisector between the vertical line through optical centre of the camera lens and the plate perpendicular meets, is known as
A. Principal point
B. Isocenter
C. Plumb point
D. Perspective centre
Answer : B

24. The distance between the minor control point and the principal point should be equal to
A. Base line of the left photograph of stereo pair
B. Base line of the right photograph of stereo pair
C. Sum of the base lines of stereo pair
D. Mean of the base lines of the stereo pair
Answer : D

25. If the altitudes of a star at its upper and lower transits are 60° 30' and 19° 30' respectively, the latitude of the place, is
A. 30°
B. 35°
C. 40°
D. 45°
Answer : C

26. The scale of a vertical photograph of focal length f taken from height of H metres above M.S.L., at a point of reduced level h, is
A. f/H
B. f/(H + h)
C. f/(H - h)
D. (H - h)/f
Answer : C

27. The nautical mile is the length of
A. 1 minute of latitude
B. 1 minute of longitude
C. 1 degree of latitude
D. 1 degree of longitude
Answer : B

28. At western elongation, the pole star moves
A. Eastward
B. Westward
C. Northward
D. Southward
Answer : D

29. The Polaris describes a small circle round the pole whose radius is approximately
A. 1°
B. 2°
C. 3°
D. 4°
Answer : A

30. A star is said to elongate
A. When the star momentarily moves vertically
B. When the angle at the star of the spherical triangle is 90°
C. When the star's declination is greater than the observer's latitude
D. All the above
Answer : D

31. The station pointer is generally used in
A. Triangulation surveying
B. Astronomical surveying
C. Hydrographical surveying
D. Photogrammetric surveying
Answer : C

32. The moon rotates round the earth once in every
A. 29 days
B. 29.35 days
C. 29.53 days
D. 30 days
Answer : B

33. The great circle along which the sun appears to trace on the celestial sphere with earth as centre during the year, is called
A. Equator
B. Celestial equator
C. Ecliptic
D. None of these
Answer : C

34. If a star whose declination is 60° N culminates at zenith, its altitude at the lower culmination, is
A. 10°
B. 20°
C. 30°
D. 40°
Answer : C

35. The parallax equation ?p = Bm?h/H - h is applicable to entire overlap of the photographs only if parallax is measured
A. Normal to base line
B. Parallel to base line
C. Both (a) and (b)
D. Neither (a) nor (b)
Answer : B

36. The great circle whose plane is perpendicular to the axis of rotation of the earth, is called
A. Equator
B. Terrestrial equator
C. 0° latitude
D. All the above
Answer : D

37. The length of a parallel of ? latitude between two meridians is equal to difference in longitudes multiplied by
A. sin ?
B. cos ?
C. tan ?
D. cot ?
Answer : B

38. A star in northern sphere is said to transit
A. When its altitude is maximum
B. When its azimuth is 180°
C. When it is in south
D. All the above
Answer : D

39. The declination and right ascension of the sun becomes 23° 27' N and 90° respectively on
A. March 21
B. June 21
C. September 21
D. December 22
Answer : B

40. Parallax bar measures
A. Parallax
B. Height
C. Parallax difference
D. Height difference
Answer : C

41. A plate parallel is the line on the plane of the negative
A. Parallel to the principal line
B. Perpendicular to the principal line
C. Along the bisector of the angle between the principal line and a perpendicular line through principal plane
D. None of these
Answer : B

42. According to Napier's Rules of circular parts for a right angled triangle, sine of middle part equals the product of
A. Tangents of two adjacent parts
B. Sines of two adjacent parts
C. Cosines of two adjacent parts
D. Both (a) and (b) above
Answer : D

43. Spring tides are caused hen
A. Sun and moon are in line with earth
B. Solar tidal force acts opposite to lunar tidal force
C. Solar tidal force and lunar tidal force both coincide
D. None of these
Answer : C

44. If ?, H, A and ? be the altitude, hour angle, azimuth and declination of a circumpolar star at its elongation, in latitude ?, the following relation holds good
A. cos H = tan ?/tan ?
B. sin ? = sin ?/sin ?
C. sin A = cos ?/cos ?
D. All the above
Answer : D

45. Pick up the correct statement from the following. The difference between the longitudes of the places is obtained.
A. By subtracting their longitudes if places are in the same hemisphere
B. By adding their longitudes if places are in the different hemispheres
C. By subtracting the sum of their longitudes exceeding 180° from 360° if places are in different hemispheres
D. All the above
Answer : C

46. The altitude of a circumpolar star is maximum when it is
A. At east elongation
B. At upper culmination
C. At west elongation
D. At lower culmination
Answer : B

47. The negative sign is assigned to
A. Reduction to mean sea level
B. Correction for horizontal alignment
C. Correction for slope
D. All the above
Answer : D

48. The scale of a tilted photograph of focal length f taken from an altitude H, along the plate parallel through principal point is
A. f/H sec ?
B. f sec ?/H
C. f/H
D. f/H cos ½?
Answer : A

49. Systematic errors
A. Always follow some definite mathematical law
B. Can be removed by applying corrections to the observed values
C. Are also known as cumulative errors
D. All the above
Answer : D

50. The angle between the axis of earth and the vertical at the station of observation is called
A. Astronomical latitude
B. Astronomical co-latitude
C. Co-declination of star
D. Declination of star
Answer : B